Automate your iOS development: Bitrise helps you automate your daily mobile app development tasks from building through testing to deployment. With Bitrise you can configure these tasks with a unique, visual workflow editor, where all of the steps are open source. If the step you need is not in our collection you can create your own and share it with others.

Cabot is an open source, self hosted infrastructure monitoring tool. It can monitor your services and send telephone, SMS, email or chat alerts to your team whenever anything goes down, all without writing a single line of code.

Cloud Application Manager is a software-defined managed services orchestration platform that enables the configuration, deployment, management and automation of applications within public, private and hybrid IT environments.

Check_MK is an extension to the Nagios monitoring system that allows creating rule-based configuration using Python and offloading work from the Nagios core to make it scale better, allowing more systems to be monitored from a single Nagios server. It comes with a set of system checks, a mod_python and JavaScript based web user interface, and a module that allows fast access to the Nagios core. On top of Nagios it also adds additional features

CircleCI is a hosted continious integration and deployment service that supports mobile, web and containerized apps. It integrates with GitHub seamlessly but with no other version control systems. CircleCI offers a single container to build multiple projects (even private ones) for free. It also supports parallelism with pricing plans.

ConfigCat is a feature flags as a service. It gives you a web based dashboard to manage your feature flags + SDKs to integrate those feature flags into your applications. ConfigCat enables you to use the same feature flags in your mobile apps, websites and server-side applications. It offers all features for free. You get an enterprise-ready SLA with the pricing plans.

A generic integration tool built on a Message Queue, to make it easy to communicate events and triggers across various parts parts of the infrastructure. Created to ease the pain of configuring many disparate events in a CI

The Ruby Cloud API library. Provides a Ruby API for interacting and managing many cloud providers, such as spinning up new instances, terminating old ones, attaching storage, etc. Currently supports more than 20 providers, including EC2, Rackspace, Brightbox, etc.

Hubot is a chat bot that can be configured to do a variety of tasks. Apart from usual CI stuff like deploying, it can be interestingly configured to do different workflows like posting images, translating languages and integrating with Google Maps, and being a bot, it can be configured to ask questions like what is the current deployed version, etc.

Icinga is an enterprise-grade monitoring system. It was forked from Nagios and has added many often new features and patches, including a HTML5 UI, REST interface, dynamic tables, etc. It is also backwards compatible with Nagios, so all the existing plugins can be reused.

Jenkins is an open source, lightweight CI tool written in Java, with high extensibility and a fast release cycle. It was forked from Hudson after Oracle acquired it, and has since added significantly more features than the original

A modern tool for managing events and logs, with an ElasticSearch backend which allows a high degree of searching and filtering. It includes a shipper in remote systems, indexer in the aggregator machine, and a Web UI.

Amplify is free monitoring tool for NGINX. Amplify offers extended NGINX metric collection, visualization, monitoring, and a static analyzer for NGINX configuration. It's simple to set up, yet powerful enough to bring the much needed insight into NGINX performance. Amplify is a SaaS developed and operated by Nginx, Inc. Keep NGINX up to date and secure with a native monitoring solution.

okmeter.io is an integrated and ready-to-use monitoring solution. It autodiscovers sevices and collects 1000s of metrics from each kind of source — hardware, OS, net stack, processes, databases, queue, web-servers, etc. Okmeter goes with preset dashboards and preconfigured triggers on common pitfalls for all those services.

Prevoty enables DevOps to inject security into your web applications and web services. Protection is provided at runtime from within the application itself, and stays with the app regardless of deployment method (cloud, on-premises, etc). Applications are protected against threats including XSS, SQLi, CSRF, command injection, etc. Works with Puppet, Chef, Ansible, Docker, Splunk, QRadar, ELK, and many others.

Create, deploy, and manage Cloud Native infrastructure, as real code. A single toolset for infrastructure, managed services, containers, and serverless environments on any cloud infrastructure. You get all the benefits of real programming languages; IDEs, abstractions and reuse thanks to functions, classes, and packages, debugging, testability, and more

QuickCheck CI is a continuous integration server that runs QuviQ QuickCheck on a project. QuickCheck is a tool for automatically generating test cases from specified properties of the software under test.

SaaS SSL monitoring and alerting. Snitch audits for revocation, expiration, changes to the certificate, known security vulnerabilities, and best practices. Snitch worries about your SSL/TLS certificate so you don't have to

Spinnaker is an open source, multi-cloud continuous delivery platform for releasing software changes with high velocity and confidence. It provides two core sets of features: cluster management and deployment management.

Splunk captures, indexes and correlates data (usually logs) in a searchable repository from which it can generate graphs, reports, alerts, dashboards and visualizations. Splunk provides searching time field parsing, so users can index any clear text data into splunk and extract the reqired fields later when needed.

From JetBrains (makers of IntelliJ), TeamCity is a feature packed CI tool with out-of-the-box support for Java, .Net, Ruby and many other languages. It has deep language-aware integration, like maven, RVM, rake, popular testing frameworks, code coverage, etc, and consequently it occupies more resources. It has a liberal free usage license.

Terraform provides a common configuration to launch infrastructure from different providers (AWS, Digital Ocean, Heroku, etc.). It provides dependency resolution to make sure that your infrastructure is created in the right order